<template>
  <div class="tags" v-if="showTags">
    <ul>
      <li class="tags-li" v-for="(item,index) in tagsList" :class="{'active': isActive(item.path)}" :key="index" @dblclick="openMenu">
        <router-link :to="item.path" class="tags-li-title">
          <span v-if="$i18n.locale === 'zh-cn'">{{item.title.title}}</span>
          <span v-else>{{item.title.title2}}</span>
        </router-link>
        <span class="tags-li-icon" @click="closeTags(index)">
          <i class="el-icon-close"></i>
        </span>
      </li>
    </ul>
    <!-- <div v-if="rightMenuVisible" class="contextmenu">
      <span>刷新</span>
      <span>刷新</span>
      <span>刷新</span>
      <span>刷新</span>
    </div>-->
    <div class="tags-close-box">
      <el-dropdown @command="handleTags">
        <el-button size="mini" type="primary" class="tags-close-box_btn">
          {{$t('i18n.tagcheck')}}
          <i class="el-icon-arrow-down el-icon--right"></i>
        </el-button>
        <template #dropdown>
          <el-dropdown-menu size="small">
            <el-dropdown-item command="other">{{$t('i18n.closeOther')}}</el-dropdown-item>
            <el-dropdown-item command="all">{{$t('i18n.closeAll')}}</el-dropdown-item>
          </el-dropdown-menu>
        </template>
      </el-dropdown>
    </div>
  </div>
</template>

<script>
import { computed, inject, onMounted, reactive, toRefs } from 'vue';
import { useStore } from 'vuex';
import { onBeforeRouteUpdate, useRoute, useRouter } from 'vue-router';
import stores from '../store/index';
export default {
  setup() {
    const route = useRoute();
    const router = useRouter();
    const isActive = path => {
      return path === route.fullPath;
    };
    const state = reactive({
      rightMenuVisible: false
    });
    const store = useStore();
    const tagsList = computed(() => store.state.tagsList);
    const showTags = computed(() => tagsList.value.length > 0);

    // 关闭单个标签
    const closeTags = index => {
      const delItem = tagsList.value[index];
      store.commit('delTagsItem', { index });
      const item = tagsList.value[index] ? tagsList.value[index] : tagsList.value[index - 1];
      if (item) {
        delItem.path === route.fullPath && router.push(item.path);
      } else {
        router.push('/');
      }
    };

    // 设置标签
    const setTags = route => {
      const isExist = tagsList.value.some(item => {
        return item.path === route.fullPath;
      });
      if (!isExist) {
        if (tagsList.value.length >= 8) {
          store.commit('delTagsItem', { index: 0 });
        }
        store.commit('setTagsItem', {
          name: route.name,
          title: route.meta,
          path: route.fullPath
        });
      }
    };
    setTags(route);
    onBeforeRouteUpdate(to => {
      setTags(to);
    });

    // 关闭全部标签
    const closeAll = () => {
      store.commit('clearTags');
      router.push('/');
    };
    // 关闭其他标签
    const closeOther = () => {
      const curItem = tagsList.value.filter(item => {
        return item.path === route.fullPath;
      });
      store.commit('closeTagsOther', curItem);
    };
    const handleTags = command => {
      command === 'other' ? closeOther() : closeAll();
    };

    // 关闭当前页面的标签页
    // store.commit("closeCurrentTag", {
    //     $router: router,
    //     $route: route
    // });
    const onRefresh = inject('reload');
    const openMenu = () => {
      onRefresh();
      // stores.commit('common/getSidebarbg', '#56B185');
    };
    onMounted(() => {});

    return {
      ...toRefs(state),
      isActive,
      tagsList,
      showTags,
      closeTags,
      handleTags,
      openMenu
    };
  }
};
</script>


<style>
.tags {
  position: relative;
  height: 30px;
  overflow: hidden;
  background: #fff;
  padding-right: 120px;
  box-shadow: 0 5px 10px #ddd;
}

.tags ul {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
}

.tags-li {
  float: left;
  margin: 3px 5px 2px 3px;
  border-radius: 3px;
  font-size: 12px;
  overflow: hidden;
  cursor: pointer;
  height: 23px;
  line-height: 23px;
  background: #56b185 !important;
  border: 1px solid #56b185 !important;
  padding: 0 5px 0 12px;
  vertical-align: middle;
  color: #666;
  -webkit-transition: all 0.3s ease-in;
  -moz-transition: all 0.3s ease-in;
  transition: all 0.3s ease-in;
}

.tags-li:not(.active):hover {
  background: #f8f8f8;
}

.tags-li.active {
  color: #fff;
}

.tags-li-title {
  float: left;
  max-width: 80px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-right: 5px;
  color: #666;
}

.tags-li.active .tags-li-title {
  color: #fff;
}

.tags-close-box {
  position: absolute;
  right: 0;
  top: 0;
  box-sizing: border-box;
  padding-top: 1px;
  text-align: center;
  width: 110px;
  height: 30px;
  box-shadow: -3px 0 15px 3px rgba(0, 0, 0, 0.1);
  z-index: 10;
}
.tags-close-box_btn {
  background: #56b185 !important;
  border: 1px solid #56b185 !important;
}
/* .contextmenu {
  border: 1px solid red;
  z-index: 9999;
  position: absolute;
  top: 0;
}
.contextmenu span {
  display: block;
} */
</style>
